2 ObjectivesTSW summarize direct and indirect ways common infectious diseases can be transmitted.TSW describe how common food-borne diseases are transmitted.TSW explain the relationship between injection drug use and transmission of blood-borne diseases such as HIV and hepatitis.TSW summarize ways to prevent the spread of infectious diseases.
3 Health Terms Airborne Hepatitis Norovirus Bacteria HIV (human immunodiciency virus)ParasiteBlood BornePathogenHostDirect ContactProtozoaImmune SystemDiseaseSterilizeImmunizationFecesVaccineIndirect ContactFood BorneVirusInfectious DiseaseFungiNoninfectious DiseaseGerm
4 IntroWrite a few sentences about how being ill could affect a person’s quality of life. How does a temporary sickness or infection, such as a cold or the flue, affect quality of life? What about a more serious or longer-lasting illness?How many of you have ever been sick with a cold, the flu or some other illness? How did you know you were ill? How did your body feel?
5 Teaching StepsSurveyWhat’s the meaning of disease? Where do you think the meaning of this word comes from?ExplainDisease means “not at ease”Refers to any destructive process that can affect a living organismOften used to describe an illness or infection that disrupts the function of or causes harm to the body* Video *
6 Teaching Steps Survey Chicken Pox What are some illnesses or diseases you’ve heard of?MeaslesColdExamples:ShinglesEbolaFluLou G DiseaseBubonic PlagueRingwormsCancerHIV/AIDSH1N1STDsBird FluMalariaSwine FluSmall Pox
7 Teaching Steps Explain Experts try to identify how people get the diseasesSome catch them from other people, from things in the environment and some of them are not
9 Teaching Steps Explain Infectious Diseases – can be passed by contact with pathogen (germs) or organisms that cause diseaseThe infected person causes an infection that causes the pathogens to multiply and damage body cellsPathogens are cause disease include bacteria, viruses, protozoa, fungi or parasites* Video *
10 single celled organism; can be killed with antibiotics* Pathogen #1:Bacteriasingle celled organism; can be killed with antibiotics*antibiotics are used to slow or kill the growth of bacteria. You must take all of the prescribed medicine or it can come back!**Video on top right
11 What are some of the more common bacterial infections?
12 Causes severe muscle spasms TetanusCauses severe muscle spasms
13 sore throat, fever, yellow or white specks on the throat Easy torelapse!
14 headache, thick mucous, feeling pressure in your head Sinus Infectionheadache, thick mucous, feeling pressure in your head
15 Inflammation of the membranes surrounding the brain and spinal cord Bacterial MeningitisCouldbeFATAL!
16 Salmonellas affects the digestive system, usually spread by contaminated food
17 Pathogen #2:VirusTiny pathogens that survive and replicate only inside living cells; can’t be killed by medication**VideoAny medication taken is to treat the symptoms; viruses cannot be cured, they have to run their course.
18 scratchy sore throat, sneezing, runny nose Common Coldscratchy sore throat, sneezing, runny nose
20 pain and swelling of glands in the throat, possible rash MUMPSpain and swelling of glands in the throat, possible rash
21 MEASLESfatigue, runny nose, cough, slight fever, small white dots in the mouth, rash covering the body
22 inflammation of the liver, jaundice, fever, dark urine Hepatitisinflammation of the liver, jaundice, fever, dark urine
23 Fungus Pathogen #3: organisms that absorb and use the nutrients of living or dead organisms *Usually treated with anover-the-counteranti-fungal cream
24 Pathogen #4:Protozoasingle celled; larger than bacteria (Malaria: Spread by mosquito bites*)**VideoGood hygiene is the best preventative measure;other medications require prescription
25 Feed off of other living things (Lice, ticks)* Pathogen #5:ParasitesFeed off of other living things (Lice, ticks)***Videoprevention best, (don’t share brushes, use medicated shampoo, wear protective clothing in wooded areas, etc…
26 Teaching StepsDirect Contact – the pathogen is transmitted by person-to-person contactIt can be transmitted by touching the infected person’s skin or when the infected blood, mucus or other body fluids get inside another person’s bodyIndirect Contact – the infected person’s skin or body fluids don’t directly touch or enter the other person through human-to-human contact.Examples – contaminating surfaces, coughs or sneezing without covering nose, pass on from infected animal, eating or drinking contaminated food or water, using infected needlesReviewWhich of the illnesses and diseases you named earlier are infectious?Can you think of any other infectious diseases that weren’t named earlier?
27 Teaching StepsReviewIs this disease transmitted by direct or indirect contact?What are the specific ways it can be transmitted? Is it passed through the air? Through food? Through contact with blood?Cold or FluCan be either direct (touching/kissing) or indirect (breathing airborne particles, touching contaminated surfaces)Food PoisoningTransmitted through contaminated food or waterCan be either direct (if spoiled/undercooked) or indirect (unclean hands/dirty cooking utensils)
28 Teaching Steps Hepatitis A virus that infects and can damage the liver Hepatitis A – transmitted indirectly when contaminated feces get into water or food, usually from not washing hands before cooking or water comes in contact with contaminated waterHepatitis B or C – transmitted by blood, direct – by touching infected blood, indirectly – using contaminated needlesHepatitis B – also can be transmitted directly by semen or vaginal fluidsHIV (Human Immunodeficiency Virus)A virus that causes AIDSDirectly – infected semen, vaginal fluids, blood (sharing needles), breastfeedingIt is safe to touch, hug, shake hands or share eating utensils with a someone with HIV
29 Teaching StepsCreateWhen you know infectious disease are transmitted you can understand ways to prevent their spread.Breaking the chain???Think of ways of how to prevent becoming infected in the first place and then ways you could stop an infection from spreading to othersWays to Prevent Infection:Eliminate the source of the pathogen – throw away spoiled foodHandle and dispose of body fluids appropriately – properly clean up blood, vomit, fecesSafely handle and dispose of contaminated items – sterilize needles and other equipmentKeep food safe – cook foods correctlyProtect yourself – wash your hands frequently
30 Teaching Steps Ways to stop the Spread of Infection: Don’t spread germs to others – don’t hug or kiss other people who are sickDon’t spread germs to objects – wash hands frequently when sickDon’t spread germs to food – wash your hands after using the bathroomKeep your immune system strong – get enough rest and sleep
31 Teaching StepsReviewThese are some health habits related to preventing infectious disease. How are you doing in this area? Could you improve any of these habitsAre there other actions you could add to help prevent infectious disease?Complete and ShareLogon to your MyBigCampus account – You have new assignment (STOP THE SPREAD)
32 Assessment and Closure CloseWhat’s one behavior that you plan to do today to reduce your risk of getting an infectious disease?